Spontaneous preterm birth (PTB -
Specific Aim 2 : To determine if there are racial differences in TH1/TH2 cytokine signature produced by fetal membranes in response to bacterial species listed above in Aim 1.
Specific Aim 3 : To test the anti-inflammatory properties of amniotic fluid in maintaining a balanced cytokine response.
Microbial invasion of the intraamniotic cavity and intraamniotic infections and inflammation mediated by a switch in the TH1/TH2 cytokine pattern favoring a proinflammatory response are commonly associated with spontaneous preterm birth. Disproportionately higher rate of infection and preterm births in African Americans and increasing rate of infection associated preterm birth suggest that the infection associated pathophysiologic pathways and biomarkers may not be generalizable and each bacterium may produce their own inflammatory signature and racial disparity will be associated with biomarker profile. In this RO3 application, a pilot study is planned using an in vitro organ explant system for fetal membranes we plan to test differential inflammatory response and racial disparity associated with common intraamniotic pathogens.
|Abrahams, Vikki M; Potter, Julie A; Bhat, Geeta et al. (2013) Bacterial modulation of human fetal membrane Toll-like receptor expression. Am J Reprod Immunol 69:33-40|
|Bhat, Geeta; Peltier, Morgan R; Syed, Tariq Ali et al. (2013) Fetal membrane biomarker network diversity and disease functions induced by intra-amniotic pathogens. Am J Reprod Immunol 69:124-33|
|Peltier, Morgan R; Drobek, Cayce O; Bhat, Geeta et al. (2012) Amniotic fluid and maternal race influence responsiveness of fetal membranes to bacteria. J Reprod Immunol 96:68-78|